Hi all,

I'm trying to figure out how to use this CLF MEP calculator tool that is downloadable from the CLF website. Please see screenshot attached - does anybody know what they are asking for as an input?

"Custom quantities input: The user can enter custom quantities on this tab and produce numerical results. For data input fill '... Read more

Hi MEP Leaders,

I wanted to remind you that our monthly call is today, August 10th, at 2pm ET! This was rescheduled from the usual time - the second Tuesday of the month - due to a BuildingGreen staff retreat. If you usually can't make the Tuesday time, this is a great opportunity to join the call!

Here is the agenda, and below is... Read more

Does anyone have a good recommendation for getting started with energy modeling with future weather files? We use a combination of Sefaira and Climate Studio, but open to suggestions. Even just links on how to approach this for making good recommendations to clients. Thanks in advance.

Our high performance consulting team is frustrated by project teams that regularly fall back on outdated rules of thumb in their system and equipment sizing. 

What challenges do you face in your work flow to limit oversizing and promote right-sizing?

By the way, Roger Chang, our literature search on the subject turned up an eleven... Read more

Wondering if anyone has a contact for good [sustainable] interactive water feature designer? A client is looking for a designer to add to our team and I figured this network would certainly have some insights. Project will be located in Omaha, NE. 

Save the Date: If you'll be in DC for AIA's Conference on Architecture or just happen to live nearby, hold 6:00–8:30 pm on Wednesday, June 5 for this event.

We have partners! This event will be hosted by ZGF Architects (on their lovely rooftop patio) in collaboration with US Architects... Read more

Welcome to the quiz portion of LEED 2012 Second Public Comment Period Opens.

Learning Objectives
Upon completing this course, participants will be able to:


1. Recognize the emphasis on making language more cleanly worded (while maintaining overall intent and requirements) and the focus on dividing sections by topic... Read more

Hello - I wanted to see if others have been having any of the same Windows security issues with a host of public software (Radiance, Window, DAYSIM, Open Studio) that we regularly use for performance analysis.

My IT team has let me know that they see serious security conflicts with THERM, as well as lot of the LBNL software (Radiance,... Read more

Hi folks,

Wondering if this group has insights about the low-embodied carbon product "Vertua" from Cemex, which appears to be a proprietary concrete product launched in 2020.

Our client wants to use CarbonCure; but our likely concrete sub is saying Cemex (where they typically source their concrete) offers an alternative called... Read more

We apologize, but the heating fuel cost calculator is no longer on the BuildingGreen website.

Take a look at Efficiency Maine's heating fuel cost calculator instead.

We are embarking on our first CLT projects (our at least we hope that they go that way). Would anyone with experience be willing to share some thoughts from the architect's perspective on things to consider, lessons learned, etc?

The NYC SDL Group met to discuss the recent SDL Summit Report. The North Star tenant "About the well being of all species" spurred discussion of an example of building's impact on other species: bird collisions. Links to some resources to address this issue are below. Feel free to ask me and/or Stefan Knust about it. We would be more than happy... Read more

There is a ton of stuff being posted about this, so this is definitely an area where it's nice to have had someone going through it and selecting the best. Thanks for doing that, Jen!

- These tips from 350.org have a great focus on connecting people and using different techniques. Their sample retreat shows how some of it might look in... Read more

Happy Monday all!

i am looking for ROM on cost premium for LEEDv4 to go from Gold to Platinum and from Gold to Net Zero, anyone have any stats?  just looking for % premium.  Our projects show around 1% to get to Gold but not sure what it looks like above that.  Thank you!

Avoiding Toxic Chemicals in Commercial Building Projects

We’re excited to issue our special report, Spec This, Not That.

In updating the report in 2020, we engaged a respected toxicology and regulatory-compliance firm to review and assist in our revision of the entire publication. This edition reflects the latest science in... Read more

Plug loads—the energy consumed by plugged-in devices—can use a substantial amount of the total energy in both residential and commercial buildings.

BuildingGreen-Approved Controls

BuildingGreen approves products that monitor and reduce electricity use for plugged-in electrical devices.

Plug Loads and Energy Conservation... Read more